Preventing Invaders


Contact: James Young, Plant Protection and Quarantine, USDA APHIS | Matt Travis, MD State Plant Health Director, USDA APHIS | ANNAPOLIS, MD (December 1, 2015) – Exotic species are in the news almost daily. They can be found in our parks and even in our own backyards. Sadly, many of them are so […]

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Exotic Earthworms

common earthworm1

Contact: Kerrie L. Kyde, Maryland DNR | ANNAPOLIS, MD (April 1, 2015) – Exotic earthworm species in the eastern U.S. provide an additional stressor for mature and successional forests already affected by disturbance, climate change, invasive insect pests and diseases, and overabundant white-tailed deer. Where native earthworm species were extirpated due to glaciation, or […]

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Zebra Mussels

Zebra Mussel1

Contact: Matthew Ashton, Maryland Department of Natural Resources | 410‑260‑8604 | ANNAPOLIS, MD (January 1, 2015) – Named for its distinct dark and light striped shell, the zebra mussel (Dreissena polymorpha) is a small, triangular freshwater bivalve mollusk that attaches to hard surfaces with hairs called byssus. Like many other nuisance species, zebra mussels are prolific […]

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Zebra Mussel

zebra mussel hand

Contact: Ronald Klauda, Maryland DNR | 410-260-8615 | ANNAPOLIS, MD (April 15, 2013) – The zebra mussel, a small freshwater mollusk native to southern Russia and the Caspian Sea, was first discovered in North America in June 1988, in Lake St. Clair. Since this inadvertent introduction, zebra mussels have spread as far west in […]

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Exotic Snails

Maritime garden snail (Cernuella cisalpina). Photo:

Contact: Dick Bean, Maryland Department of Agriculture | ANNAPOLIS, MD (March 8, 2013) – Exotic and alien species arrive in the US daily. Whether they are brought in intentionally or accidentally makes little difference; the end result can be the same – new introduced pests with potential to cause serious impacts on agriculture, the […]

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Classroom Pets and Projects

so leopard

Katie ten Hagen | ANNAPOLIS, MD (September 20, 2012) – Many people have fond memories of raising some sort of classroom “pet,” be it butterflies, frogs, fish, hermit crabs, or “regular” pets like hamsters or gerbils. Watching a plant or animal go through its entire lifecycle is incredibly fascinating and can be an invaluable […]

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